1. Preheat the oven to 160C 320F. Grease and line a brownie tin with parchment paper.

2. In a medium mixing bowl, cream the softened butter and light brown sugar. Stir in the eggs. Stir in the coconut and mashed banana. Add the peanut butter and melted chocolate, stir until well combined. Add the self rising flour and stir until incorporated. Stir in the milk.

3. Pour batter into prepared pan. Split a banana down the middle then mix with the lemon juice. Add on top of the batter.

4. Bake in preheated oven for about 50 minutes or until a tester inserted into the middle comes out clean or with just a few crumbs attached. Allow to cool in the pan for 10 minutes, then remove and transfer to a wire rack to finish cooling.